Home / 320,490.40-442,258.80-175,267.52

Finding the Fourth Proportional to 320,490.40, 442,258.80 and 175,267.52

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Solution

The fourth proportional to 320,490.40, 442,258.80 and 175,267.52 is: 241,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,490.40 : 442,258.80 = 175,267.52 : x
  2. Step 2: Convert to fraction form
    320,490.40/442,258.80 = 175,267.52/x
  3. Step 3: Cross multiply
    320,490.40x = 442,258.80 × 175,267.52
  4. Step 4: Simplify right side
    320,490.40x = 77,513,603,074.18
  5. Step 5: Solve for x
    x = 77,513,603,074.18/320,490.40
  6. Step 6: Final answer
    x = 241,859.36

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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.