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Finding the Fourth Proportional to 508,460.40, 762,710.40 and 153,474.48

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Solution

The fourth proportional to 508,460.40, 762,710.40 and 153,474.48 is: 230,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,460.40 : 762,710.40 = 153,474.48 : x
  2. Step 2: Convert to fraction form
    508,460.40/762,710.40 = 153,474.48/x
  3. Step 3: Cross multiply
    508,460.40x = 762,710.40 × 153,474.48
  4. Step 4: Simplify right side
    508,460.40x = 117,056,582,030.59
  5. Step 5: Solve for x
    x = 117,056,582,030.59/508,460.40
  6. Step 6: Final answer
    x = 230,217.70

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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.