Home / 296,021.40-442,865.70-257,011.80

Finding the Fourth Proportional to 296,021.40, 442,865.70 and 257,011.80

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Solution

The fourth proportional to 296,021.40, 442,865.70 and 257,011.80 is: 384,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,021.40 : 442,865.70 = 257,011.80 : x
  2. Step 2: Convert to fraction form
    296,021.40/442,865.70 = 257,011.80/x
  3. Step 3: Cross multiply
    296,021.40x = 442,865.70 × 257,011.80
  4. Step 4: Simplify right side
    296,021.40x = 113,821,710,715.26
  5. Step 5: Solve for x
    x = 113,821,710,715.26/296,021.40
  6. Step 6: Final answer
    x = 384,505.01

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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.