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Finding the Fourth Proportional to 306,117.35, 458,793.30 and 156,417.20

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Solution

The fourth proportional to 306,117.35, 458,793.30 and 156,417.20 is: 234,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,117.35 : 458,793.30 = 156,417.20 : x
  2. Step 2: Convert to fraction form
    306,117.35/458,793.30 = 156,417.20/x
  3. Step 3: Cross multiply
    306,117.35x = 458,793.30 × 156,417.20
  4. Step 4: Simplify right side
    306,117.35x = 71,763,163,364.76
  5. Step 5: Solve for x
    x = 71,763,163,364.76/306,117.35
  6. Step 6: Final answer
    x = 234,430.24

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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.