Home / 279,521.13-385,740.09-152,197.50

Finding the Fourth Proportional to 279,521.13, 385,740.09 and 152,197.50

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Solution

The fourth proportional to 279,521.13, 385,740.09 and 152,197.50 is: 210,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,521.13 : 385,740.09 = 152,197.50 : x
  2. Step 2: Convert to fraction form
    279,521.13/385,740.09 = 152,197.50/x
  3. Step 3: Cross multiply
    279,521.13x = 385,740.09 × 152,197.50
  4. Step 4: Simplify right side
    279,521.13x = 58,708,677,347.78
  5. Step 5: Solve for x
    x = 58,708,677,347.78/279,521.13
  6. Step 6: Final answer
    x = 210,033.06

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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.