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Finding the Fourth Proportional to 302,430.80, 453,451.80 and 125,008.40

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Solution

The fourth proportional to 302,430.80, 453,451.80 and 125,008.40 is: 187,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,430.80 : 453,451.80 = 125,008.40 : x
  2. Step 2: Convert to fraction form
    302,430.80/453,451.80 = 125,008.40/x
  3. Step 3: Cross multiply
    302,430.80x = 453,451.80 × 125,008.40
  4. Step 4: Simplify right side
    302,430.80x = 56,685,283,995.12
  5. Step 5: Solve for x
    x = 56,685,283,995.12/302,430.80
  6. Step 6: Final answer
    x = 187,432.25

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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.