Home / 228,000.30-342,000.45-115,637.10

Finding the Fourth Proportional to 228,000.30, 342,000.45 and 115,637.10

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Solution

The fourth proportional to 228,000.30, 342,000.45 and 115,637.10 is: 173,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,000.30 : 342,000.45 = 115,637.10 : x
  2. Step 2: Convert to fraction form
    228,000.30/342,000.45 = 115,637.10/x
  3. Step 3: Cross multiply
    228,000.30x = 342,000.45 × 115,637.10
  4. Step 4: Simplify right side
    228,000.30x = 39,547,940,236.70
  5. Step 5: Solve for x
    x = 39,547,940,236.70/228,000.30
  6. Step 6: Final answer
    x = 173,455.65

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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.