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Finding the Fourth Proportional to 228,259.48, 315,098.98 and 136,411.18

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Solution

The fourth proportional to 228,259.48, 315,098.98 and 136,411.18 is: 188,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,259.48 : 315,098.98 = 136,411.18 : x
  2. Step 2: Convert to fraction form
    228,259.48/315,098.98 = 136,411.18/x
  3. Step 3: Cross multiply
    228,259.48x = 315,098.98 × 136,411.18
  4. Step 4: Simplify right side
    228,259.48x = 42,983,023,678.60
  5. Step 5: Solve for x
    x = 42,983,023,678.60/228,259.48
  6. Step 6: Final answer
    x = 188,307.73

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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.