Home / 287,141.24-430,800.12-146,998.28

Finding the Fourth Proportional to 287,141.24, 430,800.12 and 146,998.28

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Solution

The fourth proportional to 287,141.24, 430,800.12 and 146,998.28 is: 220,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,141.24 : 430,800.12 = 146,998.28 : x
  2. Step 2: Convert to fraction form
    287,141.24/430,800.12 = 146,998.28/x
  3. Step 3: Cross multiply
    287,141.24x = 430,800.12 × 146,998.28
  4. Step 4: Simplify right side
    287,141.24x = 63,326,876,663.79
  5. Step 5: Solve for x
    x = 63,326,876,663.79/287,141.24
  6. Step 6: Final answer
    x = 220,542.60

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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.