Home / 280,152.24-386,610.12-152,828.36

Finding the Fourth Proportional to 280,152.24, 386,610.12 and 152,828.36

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Solution

The fourth proportional to 280,152.24, 386,610.12 and 152,828.36 is: 210,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,152.24 : 386,610.12 = 152,828.36 : x
  2. Step 2: Convert to fraction form
    280,152.24/386,610.12 = 152,828.36/x
  3. Step 3: Cross multiply
    280,152.24x = 386,610.12 × 152,828.36
  4. Step 4: Simplify right side
    280,152.24x = 59,084,990,599.00
  5. Step 5: Solve for x
    x = 59,084,990,599.00/280,152.24
  6. Step 6: Final answer
    x = 210,903.15

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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.