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Finding the Fourth Proportional to 243,088.20, 364,848.30 and 143,123.40

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Solution

The fourth proportional to 243,088.20, 364,848.30 and 143,123.40 is: 214,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,088.20 : 364,848.30 = 143,123.40 : x
  2. Step 2: Convert to fraction form
    243,088.20/364,848.30 = 143,123.40/x
  3. Step 3: Cross multiply
    243,088.20x = 364,848.30 × 143,123.40
  4. Step 4: Simplify right side
    243,088.20x = 52,218,329,180.22
  5. Step 5: Solve for x
    x = 52,218,329,180.22/243,088.20
  6. Step 6: Final answer
    x = 214,812.27

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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.