Home / 215,526.30-323,635.05-145,715.10

Finding the Fourth Proportional to 215,526.30, 323,635.05 and 145,715.10

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Solution

The fourth proportional to 215,526.30, 323,635.05 and 145,715.10 is: 218,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,526.30 : 323,635.05 = 145,715.10 : x
  2. Step 2: Convert to fraction form
    215,526.30/323,635.05 = 145,715.10/x
  3. Step 3: Cross multiply
    215,526.30x = 323,635.05 × 145,715.10
  4. Step 4: Simplify right side
    215,526.30x = 47,158,513,674.26
  5. Step 5: Solve for x
    x = 47,158,513,674.26/215,526.30
  6. Step 6: Final answer
    x = 218,806.31

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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.