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Finding the Fourth Proportional to 478,301.27, 660,068.25 and 260,518.20

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Solution

The fourth proportional to 478,301.27, 660,068.25 and 260,518.20 is: 359,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,301.27 : 660,068.25 = 260,518.20 : x
  2. Step 2: Convert to fraction form
    478,301.27/660,068.25 = 260,518.20/x
  3. Step 3: Cross multiply
    478,301.27x = 660,068.25 × 260,518.20
  4. Step 4: Simplify right side
    478,301.27x = 171,959,792,367.15
  5. Step 5: Solve for x
    x = 171,959,792,367.15/478,301.27
  6. Step 6: Final answer
    x = 359,521.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.