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Finding the Fourth Proportional to 257,482.64, 355,320.60 and 144,302.96

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Solution

The fourth proportional to 257,482.64, 355,320.60 and 144,302.96 is: 199,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,482.64 : 355,320.60 = 144,302.96 : x
  2. Step 2: Convert to fraction form
    257,482.64/355,320.60 = 144,302.96/x
  3. Step 3: Cross multiply
    257,482.64x = 355,320.60 × 144,302.96
  4. Step 4: Simplify right side
    257,482.64x = 51,273,814,328.98
  5. Step 5: Solve for x
    x = 51,273,814,328.98/257,482.64
  6. Step 6: Final answer
    x = 199,135.03

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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.