Home / 312,421.30-468,535.05-112,715.73

Finding the Fourth Proportional to 312,421.30, 468,535.05 and 112,715.73

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Solution

The fourth proportional to 312,421.30, 468,535.05 and 112,715.73 is: 169,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,421.30 : 468,535.05 = 112,715.73 : x
  2. Step 2: Convert to fraction form
    312,421.30/468,535.05 = 112,715.73/x
  3. Step 3: Cross multiply
    312,421.30x = 468,535.05 × 112,715.73
  4. Step 4: Simplify right side
    312,421.30x = 52,811,270,191.34
  5. Step 5: Solve for x
    x = 52,811,270,191.34/312,421.30
  6. Step 6: Final answer
    x = 169,038.64

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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.