Home / 280,904.04-421,323.24-112,417.56

Finding the Fourth Proportional to 280,904.04, 421,323.24 and 112,417.56

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Solution

The fourth proportional to 280,904.04, 421,323.24 and 112,417.56 is: 168,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,904.04 : 421,323.24 = 112,417.56 : x
  2. Step 2: Convert to fraction form
    280,904.04/421,323.24 = 112,417.56/x
  3. Step 3: Cross multiply
    280,904.04x = 421,323.24 × 112,417.56
  4. Step 4: Simplify right side
    280,904.04x = 47,364,130,612.09
  5. Step 5: Solve for x
    x = 47,364,130,612.09/280,904.04
  6. Step 6: Final answer
    x = 168,613.21

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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.