Home / 287,007.30-430,527.15-87,334.20

Finding the Fourth Proportional to 287,007.30, 430,527.15 and 87,334.20

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Solution

The fourth proportional to 287,007.30, 430,527.15 and 87,334.20 is: 131,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,007.30 : 430,527.15 = 87,334.20 : x
  2. Step 2: Convert to fraction form
    287,007.30/430,527.15 = 87,334.20/x
  3. Step 3: Cross multiply
    287,007.30x = 430,527.15 × 87,334.20
  4. Step 4: Simplify right side
    287,007.30x = 37,599,744,223.53
  5. Step 5: Solve for x
    x = 37,599,744,223.53/287,007.30
  6. Step 6: Final answer
    x = 131,006.23

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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.