Home / 399,148.13-550,824.41-272,045.76

Finding the Fourth Proportional to 399,148.13, 550,824.41 and 272,045.76

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Solution

The fourth proportional to 399,148.13, 550,824.41 and 272,045.76 is: 375,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,148.13 : 550,824.41 = 272,045.76 : x
  2. Step 2: Convert to fraction form
    399,148.13/550,824.41 = 272,045.76/x
  3. Step 3: Cross multiply
    399,148.13x = 550,824.41 × 272,045.76
  4. Step 4: Simplify right side
    399,148.13x = 149,849,445,925.12
  5. Step 5: Solve for x
    x = 149,849,445,925.12/399,148.13
  6. Step 6: Final answer
    x = 375,423.15

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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.