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Finding the Fourth Proportional to 243,538.65, 335,865.51 and 152,902.98

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Solution

The fourth proportional to 243,538.65, 335,865.51 and 152,902.98 is: 210,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,538.65 : 335,865.51 = 152,902.98 : x
  2. Step 2: Convert to fraction form
    243,538.65/335,865.51 = 152,902.98/x
  3. Step 3: Cross multiply
    243,538.65x = 335,865.51 × 152,902.98
  4. Step 4: Simplify right side
    243,538.65x = 51,354,837,358.22
  5. Step 5: Solve for x
    x = 51,354,837,358.22/243,538.65
  6. Step 6: Final answer
    x = 210,869.35

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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.