Home / 475,315.18-655,937.55-257,527.40

Finding the Fourth Proportional to 475,315.18, 655,937.55 and 257,527.40

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Solution

The fourth proportional to 475,315.18, 655,937.55 and 257,527.40 is: 355,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,315.18 : 655,937.55 = 257,527.40 : x
  2. Step 2: Convert to fraction form
    475,315.18/655,937.55 = 257,527.40/x
  3. Step 3: Cross multiply
    475,315.18x = 655,937.55 × 257,527.40
  4. Step 4: Simplify right side
    475,315.18x = 168,921,888,534.18
  5. Step 5: Solve for x
    x = 168,921,888,534.18/475,315.18
  6. Step 6: Final answer
    x = 355,389.22

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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.