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Finding the Fourth Proportional to 145,495, 218,242.74 and 40,314.22

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Solution

The fourth proportional to 145,495, 218,242.74 and 40,314.22 is: 60,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,495 : 218,242.74 = 40,314.22 : x
  2. Step 2: Convert to fraction form
    145,495/218,242.74 = 40,314.22/x
  3. Step 3: Cross multiply
    145,495x = 218,242.74 × 40,314.22
  4. Step 4: Simplify right side
    145,495x = 8,798,285,833.76
  5. Step 5: Solve for x
    x = 8,798,285,833.76/145,495
  6. Step 6: Final answer
    x = 60,471.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.