Home / 345,186.08-517,838.16-158,213.60

Finding the Fourth Proportional to 345,186.08, 517,838.16 and 158,213.60

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Solution

The fourth proportional to 345,186.08, 517,838.16 and 158,213.60 is: 237,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,186.08 : 517,838.16 = 158,213.60 : x
  2. Step 2: Convert to fraction form
    345,186.08/517,838.16 = 158,213.60/x
  3. Step 3: Cross multiply
    345,186.08x = 517,838.16 × 158,213.60
  4. Step 4: Simplify right side
    345,186.08x = 81,929,039,510.98
  5. Step 5: Solve for x
    x = 81,929,039,510.98/345,186.08
  6. Step 6: Final answer
    x = 237,347.46

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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.