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Finding the Fourth Proportional to 315,575.24, 435,510.16 and 193,029.20

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Solution

The fourth proportional to 315,575.24, 435,510.16 and 193,029.20 is: 266,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,575.24 : 435,510.16 = 193,029.20 : x
  2. Step 2: Convert to fraction form
    315,575.24/435,510.16 = 193,029.20/x
  3. Step 3: Cross multiply
    315,575.24x = 435,510.16 × 193,029.20
  4. Step 4: Simplify right side
    315,575.24x = 84,066,177,776.67
  5. Step 5: Solve for x
    x = 84,066,177,776.67/315,575.24
  6. Step 6: Final answer
    x = 266,390.28

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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.