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Finding the Fourth Proportional to 261,070.68, 360,270.54 and 153,647.04

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Solution

The fourth proportional to 261,070.68, 360,270.54 and 153,647.04 is: 212,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,070.68 : 360,270.54 = 153,647.04 : x
  2. Step 2: Convert to fraction form
    261,070.68/360,270.54 = 153,647.04/x
  3. Step 3: Cross multiply
    261,070.68x = 360,270.54 × 153,647.04
  4. Step 4: Simplify right side
    261,070.68x = 55,354,502,070.20
  5. Step 5: Solve for x
    x = 55,354,502,070.20/261,070.68
  6. Step 6: Final answer
    x = 212,028.80

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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.