Home / 520,220.48-780,242.08-146,156

Finding the Fourth Proportional to 520,220.48, 780,242.08 and 146,156

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Solution

The fourth proportional to 520,220.48, 780,242.08 and 146,156 is: 219,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,220.48 : 780,242.08 = 146,156 : x
  2. Step 2: Convert to fraction form
    520,220.48/780,242.08 = 146,156/x
  3. Step 3: Cross multiply
    520,220.48x = 780,242.08 × 146,156
  4. Step 4: Simplify right side
    520,220.48x = 114,037,061,444.48
  5. Step 5: Solve for x
    x = 114,037,061,444.48/520,220.48
  6. Step 6: Final answer
    x = 219,209.10

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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.