Home / 268,746.80-403,120.20-97,981.32

Finding the Fourth Proportional to 268,746.80, 403,120.20 and 97,981.32

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Solution

The fourth proportional to 268,746.80, 403,120.20 and 97,981.32 is: 146,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,746.80 : 403,120.20 = 97,981.32 : x
  2. Step 2: Convert to fraction form
    268,746.80/403,120.20 = 97,981.32/x
  3. Step 3: Cross multiply
    268,746.80x = 403,120.20 × 97,981.32
  4. Step 4: Simplify right side
    268,746.80x = 39,498,249,314.66
  5. Step 5: Solve for x
    x = 39,498,249,314.66/268,746.80
  6. Step 6: Final answer
    x = 146,971.98

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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.