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Finding the Fourth Proportional to 147,430.10, 220,817.10 and 127,747.10

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Solution

The fourth proportional to 147,430.10, 220,817.10 and 127,747.10 is: 191,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,430.10 : 220,817.10 = 127,747.10 : x
  2. Step 2: Convert to fraction form
    147,430.10/220,817.10 = 127,747.10/x
  3. Step 3: Cross multiply
    147,430.10x = 220,817.10 × 127,747.10
  4. Step 4: Simplify right side
    147,430.10x = 28,208,744,155.41
  5. Step 5: Solve for x
    x = 28,208,744,155.41/147,430.10
  6. Step 6: Final answer
    x = 191,336.40

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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.