Home / 379,307.28-523,459.08-218,162.14

Finding the Fourth Proportional to 379,307.28, 523,459.08 and 218,162.14

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Solution

The fourth proportional to 379,307.28, 523,459.08 and 218,162.14 is: 301,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,307.28 : 523,459.08 = 218,162.14 : x
  2. Step 2: Convert to fraction form
    379,307.28/523,459.08 = 218,162.14/x
  3. Step 3: Cross multiply
    379,307.28x = 523,459.08 × 218,162.14
  4. Step 4: Simplify right side
    379,307.28x = 114,198,953,095.23
  5. Step 5: Solve for x
    x = 114,198,953,095.23/379,307.28
  6. Step 6: Final answer
    x = 301,072.40

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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.