Home / 282,522.08-390,225.84-211,219.04

Finding the Fourth Proportional to 282,522.08, 390,225.84 and 211,219.04

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Solution

The fourth proportional to 282,522.08, 390,225.84 and 211,219.04 is: 291,740.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,522.08 : 390,225.84 = 211,219.04 : x
  2. Step 2: Convert to fraction form
    282,522.08/390,225.84 = 211,219.04/x
  3. Step 3: Cross multiply
    282,522.08x = 390,225.84 × 211,219.04
  4. Step 4: Simplify right side
    282,522.08x = 82,423,127,307.99
  5. Step 5: Solve for x
    x = 82,423,127,307.99/282,522.08
  6. Step 6: Final answer
    x = 291,740.48

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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.