Home / 509,417.15-764,151.85-130,341.10

Finding the Fourth Proportional to 509,417.15, 764,151.85 and 130,341.10

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Solution

The fourth proportional to 509,417.15, 764,151.85 and 130,341.10 is: 195,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,417.15 : 764,151.85 = 130,341.10 : x
  2. Step 2: Convert to fraction form
    509,417.15/764,151.85 = 130,341.10/x
  3. Step 3: Cross multiply
    509,417.15x = 764,151.85 × 130,341.10
  4. Step 4: Simplify right side
    509,417.15x = 99,600,392,696.04
  5. Step 5: Solve for x
    x = 99,600,392,696.04/509,417.15
  6. Step 6: Final answer
    x = 195,518.33

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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.