Home / 218,507.18-301,545.53-123,017.28

Finding the Fourth Proportional to 218,507.18, 301,545.53 and 123,017.28

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Solution

The fourth proportional to 218,507.18, 301,545.53 and 123,017.28 is: 169,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,507.18 : 301,545.53 = 123,017.28 : x
  2. Step 2: Convert to fraction form
    218,507.18/301,545.53 = 123,017.28/x
  3. Step 3: Cross multiply
    218,507.18x = 301,545.53 × 123,017.28
  4. Step 4: Simplify right side
    218,507.18x = 37,095,310,281.67
  5. Step 5: Solve for x
    x = 37,095,310,281.67/218,507.18
  6. Step 6: Final answer
    x = 169,767.01

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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.