Home / 402,345.80-555,006.29-251,180.36

Finding the Fourth Proportional to 402,345.80, 555,006.29 and 251,180.36

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Solution

The fourth proportional to 402,345.80, 555,006.29 and 251,180.36 is: 346,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,345.80 : 555,006.29 = 251,180.36 : x
  2. Step 2: Convert to fraction form
    402,345.80/555,006.29 = 251,180.36/x
  3. Step 3: Cross multiply
    402,345.80x = 555,006.29 × 251,180.36
  4. Step 4: Simplify right side
    402,345.80x = 139,406,679,724.46
  5. Step 5: Solve for x
    x = 139,406,679,724.46/402,345.80
  6. Step 6: Final answer
    x = 346,484.74

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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.