Home / 292,275.90-438,430.86-81,930.24

Finding the Fourth Proportional to 292,275.90, 438,430.86 and 81,930.24

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Solution

The fourth proportional to 292,275.90, 438,430.86 and 81,930.24 is: 122,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.90 : 438,430.86 = 81,930.24 : x
  2. Step 2: Convert to fraction form
    292,275.90/438,430.86 = 81,930.24/x
  3. Step 3: Cross multiply
    292,275.90x = 438,430.86 × 81,930.24
  4. Step 4: Simplify right side
    292,275.90x = 35,920,745,583.21
  5. Step 5: Solve for x
    x = 35,920,745,583.21/292,275.90
  6. Step 6: Final answer
    x = 122,900.13

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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.