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Finding the Fourth Proportional to 145,864.10, 218,450.55 and 145,864.10

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Solution

The fourth proportional to 145,864.10, 218,450.55 and 145,864.10 is: 218,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,864.10 : 218,450.55 = 145,864.10 : x
  2. Step 2: Convert to fraction form
    145,864.10/218,450.55 = 145,864.10/x
  3. Step 3: Cross multiply
    145,864.10x = 218,450.55 × 145,864.10
  4. Step 4: Simplify right side
    145,864.10x = 31,864,092,870.26
  5. Step 5: Solve for x
    x = 31,864,092,870.26/145,864.10
  6. Step 6: Final answer
    x = 218,450.55

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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.