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Finding the Fourth Proportional to 342,924.68, 473,360.28 and 279,151.76

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Solution

The fourth proportional to 342,924.68, 473,360.28 and 279,151.76 is: 385,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,924.68 : 473,360.28 = 279,151.76 : x
  2. Step 2: Convert to fraction form
    342,924.68/473,360.28 = 279,151.76/x
  3. Step 3: Cross multiply
    342,924.68x = 473,360.28 × 279,151.76
  4. Step 4: Simplify right side
    342,924.68x = 132,139,355,276.09
  5. Step 5: Solve for x
    x = 132,139,355,276.09/342,924.68
  6. Step 6: Final answer
    x = 385,330.55

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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.