Home / 292,985.64-439,491.23-143,351.91

Finding the Fourth Proportional to 292,985.64, 439,491.23 and 143,351.91

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Solution

The fourth proportional to 292,985.64, 439,491.23 and 143,351.91 is: 215,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,985.64 : 439,491.23 = 143,351.91 : x
  2. Step 2: Convert to fraction form
    292,985.64/439,491.23 = 143,351.91/x
  3. Step 3: Cross multiply
    292,985.64x = 439,491.23 × 143,351.91
  4. Step 4: Simplify right side
    292,985.64x = 63,001,906,531.99
  5. Step 5: Solve for x
    x = 63,001,906,531.99/292,985.64
  6. Step 6: Final answer
    x = 215,034.11

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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.