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Finding the Fourth Proportional to 243,921.20, 365,881.80 and 160,210.40

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Solution

The fourth proportional to 243,921.20, 365,881.80 and 160,210.40 is: 240,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,921.20 : 365,881.80 = 160,210.40 : x
  2. Step 2: Convert to fraction form
    243,921.20/365,881.80 = 160,210.40/x
  3. Step 3: Cross multiply
    243,921.20x = 365,881.80 × 160,210.40
  4. Step 4: Simplify right side
    243,921.20x = 58,618,069,530.72
  5. Step 5: Solve for x
    x = 58,618,069,530.72/243,921.20
  6. Step 6: Final answer
    x = 240,315.60

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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.