Home / 280,883.04-421,448.64-147,732.96

Finding the Fourth Proportional to 280,883.04, 421,448.64 and 147,732.96

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Solution

The fourth proportional to 280,883.04, 421,448.64 and 147,732.96 is: 221,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,883.04 : 421,448.64 = 147,732.96 : x
  2. Step 2: Convert to fraction form
    280,883.04/421,448.64 = 147,732.96/x
  3. Step 3: Cross multiply
    280,883.04x = 421,448.64 × 147,732.96
  4. Step 4: Simplify right side
    280,883.04x = 62,261,855,075.17
  5. Step 5: Solve for x
    x = 62,261,855,075.17/280,883.04
  6. Step 6: Final answer
    x = 221,664.70

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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.