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Finding the Fourth Proportional to 243,585.90, 365,378.85 and 155,231.10

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Solution

The fourth proportional to 243,585.90, 365,378.85 and 155,231.10 is: 232,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,585.90 : 365,378.85 = 155,231.10 : x
  2. Step 2: Convert to fraction form
    243,585.90/365,378.85 = 155,231.10/x
  3. Step 3: Cross multiply
    243,585.90x = 365,378.85 × 155,231.10
  4. Step 4: Simplify right side
    243,585.90x = 56,718,160,802.24
  5. Step 5: Solve for x
    x = 56,718,160,802.24/243,585.90
  6. Step 6: Final answer
    x = 232,846.65

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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.