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Finding the Fourth Proportional to 342,314.04, 513,535.38 and 155,338.68

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Solution

The fourth proportional to 342,314.04, 513,535.38 and 155,338.68 is: 233,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,314.04 : 513,535.38 = 155,338.68 : x
  2. Step 2: Convert to fraction form
    342,314.04/513,535.38 = 155,338.68/x
  3. Step 3: Cross multiply
    342,314.04x = 513,535.38 × 155,338.68
  4. Step 4: Simplify right side
    342,314.04x = 79,771,908,062.50
  5. Step 5: Solve for x
    x = 79,771,908,062.50/342,314.04
  6. Step 6: Final answer
    x = 233,037.21

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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.