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Finding the Fourth Proportional to 250,070.86, 345,258.78 and 223,167.16

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Solution

The fourth proportional to 250,070.86, 345,258.78 and 223,167.16 is: 308,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,070.86 : 345,258.78 = 223,167.16 : x
  2. Step 2: Convert to fraction form
    250,070.86/345,258.78 = 223,167.16/x
  3. Step 3: Cross multiply
    250,070.86x = 345,258.78 × 223,167.16
  4. Step 4: Simplify right side
    250,070.86x = 77,050,421,397.66
  5. Step 5: Solve for x
    x = 77,050,421,397.66/250,070.86
  6. Step 6: Final answer
    x = 308,114.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.