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Finding the Fourth Proportional to 487,210.40, 730,232.40 and 250,431.20

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Solution

The fourth proportional to 487,210.40, 730,232.40 and 250,431.20 is: 375,347.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,210.40 : 730,232.40 = 250,431.20 : x
  2. Step 2: Convert to fraction form
    487,210.40/730,232.40 = 250,431.20/x
  3. Step 3: Cross multiply
    487,210.40x = 730,232.40 × 250,431.20
  4. Step 4: Simplify right side
    487,210.40x = 182,872,976,210.88
  5. Step 5: Solve for x
    x = 182,872,976,210.88/487,210.40
  6. Step 6: Final answer
    x = 375,347.03

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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.