Home / 280,841.04-421,328.36-91,302.24

Finding the Fourth Proportional to 280,841.04, 421,328.36 and 91,302.24

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Solution

The fourth proportional to 280,841.04, 421,328.36 and 91,302.24 is: 136,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,841.04 : 421,328.36 = 91,302.24 : x
  2. Step 2: Convert to fraction form
    280,841.04/421,328.36 = 91,302.24/x
  3. Step 3: Cross multiply
    280,841.04x = 421,328.36 × 91,302.24
  4. Step 4: Simplify right side
    280,841.04x = 38,468,222,587.02
  5. Step 5: Solve for x
    x = 38,468,222,587.02/280,841.04
  6. Step 6: Final answer
    x = 136,975.08

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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.