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Finding the Fourth Proportional to 352,275.15, 486,484.82 and 243,657.63

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Solution

The fourth proportional to 352,275.15, 486,484.82 and 243,657.63 is: 336,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,275.15 : 486,484.82 = 243,657.63 : x
  2. Step 2: Convert to fraction form
    352,275.15/486,484.82 = 243,657.63/x
  3. Step 3: Cross multiply
    352,275.15x = 486,484.82 × 243,657.63
  4. Step 4: Simplify right side
    352,275.15x = 118,535,737,053.89
  5. Step 5: Solve for x
    x = 118,535,737,053.89/352,275.15
  6. Step 6: Final answer
    x = 336,486.23

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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.