Home / 370,724.32-556,001.16-221,006.80

Finding the Fourth Proportional to 370,724.32, 556,001.16 and 221,006.80

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Solution

The fourth proportional to 370,724.32, 556,001.16 and 221,006.80 is: 331,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,724.32 : 556,001.16 = 221,006.80 : x
  2. Step 2: Convert to fraction form
    370,724.32/556,001.16 = 221,006.80/x
  3. Step 3: Cross multiply
    370,724.32x = 556,001.16 × 221,006.80
  4. Step 4: Simplify right side
    370,724.32x = 122,880,037,167.89
  5. Step 5: Solve for x
    x = 122,880,037,167.89/370,724.32
  6. Step 6: Final answer
    x = 331,459.34

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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.