Home / 228,088.08-342,442.38-128,318.49

Finding the Fourth Proportional to 228,088.08, 342,442.38 and 128,318.49

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Solution

The fourth proportional to 228,088.08, 342,442.38 and 128,318.49 is: 192,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,088.08 : 342,442.38 = 128,318.49 : x
  2. Step 2: Convert to fraction form
    228,088.08/342,442.38 = 128,318.49/x
  3. Step 3: Cross multiply
    228,088.08x = 342,442.38 × 128,318.49
  4. Step 4: Simplify right side
    228,088.08x = 43,941,689,113.61
  5. Step 5: Solve for x
    x = 43,941,689,113.61/228,088.08
  6. Step 6: Final answer
    x = 192,652.28

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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.