Home / 261,815.70-392,723.55-242,570.10

Finding the Fourth Proportional to 261,815.70, 392,723.55 and 242,570.10

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Solution

The fourth proportional to 261,815.70, 392,723.55 and 242,570.10 is: 363,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,815.70 : 392,723.55 = 242,570.10 : x
  2. Step 2: Convert to fraction form
    261,815.70/392,723.55 = 242,570.10/x
  3. Step 3: Cross multiply
    261,815.70x = 392,723.55 × 242,570.10
  4. Step 4: Simplify right side
    261,815.70x = 95,262,990,795.86
  5. Step 5: Solve for x
    x = 95,262,990,795.86/261,815.70
  6. Step 6: Final answer
    x = 363,855.15

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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.