Home / 547,328.16-821,070.60-168,280.72

Finding the Fourth Proportional to 547,328.16, 821,070.60 and 168,280.72

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Solution

The fourth proportional to 547,328.16, 821,070.60 and 168,280.72 is: 252,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,328.16 : 821,070.60 = 168,280.72 : x
  2. Step 2: Convert to fraction form
    547,328.16/821,070.60 = 168,280.72/x
  3. Step 3: Cross multiply
    547,328.16x = 821,070.60 × 168,280.72
  4. Step 4: Simplify right side
    547,328.16x = 138,170,351,738.83
  5. Step 5: Solve for x
    x = 138,170,351,738.83/547,328.16
  6. Step 6: Final answer
    x = 252,445.17

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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.