Home / 282,728.24-390,008.40-179,172.80

Finding the Fourth Proportional to 282,728.24, 390,008.40 and 179,172.80

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Solution

The fourth proportional to 282,728.24, 390,008.40 and 179,172.80 is: 247,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,728.24 : 390,008.40 = 179,172.80 : x
  2. Step 2: Convert to fraction form
    282,728.24/390,008.40 = 179,172.80/x
  3. Step 3: Cross multiply
    282,728.24x = 390,008.40 × 179,172.80
  4. Step 4: Simplify right side
    282,728.24x = 69,878,897,051.52
  5. Step 5: Solve for x
    x = 69,878,897,051.52/282,728.24
  6. Step 6: Final answer
    x = 247,159.24

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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.