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Finding the Fourth Proportional to 508,730.30, 763,204.80 and 153,780.20

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Solution

The fourth proportional to 508,730.30, 763,204.80 and 153,780.20 is: 230,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,730.30 : 763,204.80 = 153,780.20 : x
  2. Step 2: Convert to fraction form
    508,730.30/763,204.80 = 153,780.20/x
  3. Step 3: Cross multiply
    508,730.30x = 763,204.80 × 153,780.20
  4. Step 4: Simplify right side
    508,730.30x = 117,365,786,784.96
  5. Step 5: Solve for x
    x = 117,365,786,784.96/508,730.30
  6. Step 6: Final answer
    x = 230,703.35

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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.