Home / 370,619.80-555,929.70-133,970.20

Finding the Fourth Proportional to 370,619.80, 555,929.70 and 133,970.20

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Solution

The fourth proportional to 370,619.80, 555,929.70 and 133,970.20 is: 200,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,619.80 : 555,929.70 = 133,970.20 : x
  2. Step 2: Convert to fraction form
    370,619.80/555,929.70 = 133,970.20/x
  3. Step 3: Cross multiply
    370,619.80x = 555,929.70 × 133,970.20
  4. Step 4: Simplify right side
    370,619.80x = 74,478,013,094.94
  5. Step 5: Solve for x
    x = 74,478,013,094.94/370,619.80
  6. Step 6: Final answer
    x = 200,955.30

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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.