Home / 457,200.64-630,930.21-253,250.89

Finding the Fourth Proportional to 457,200.64, 630,930.21 and 253,250.89

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Solution

The fourth proportional to 457,200.64, 630,930.21 and 253,250.89 is: 349,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,200.64 : 630,930.21 = 253,250.89 : x
  2. Step 2: Convert to fraction form
    457,200.64/630,930.21 = 253,250.89/x
  3. Step 3: Cross multiply
    457,200.64x = 630,930.21 × 253,250.89
  4. Step 4: Simplify right side
    457,200.64x = 159,783,637,210.39
  5. Step 5: Solve for x
    x = 159,783,637,210.39/457,200.64
  6. Step 6: Final answer
    x = 349,482.53

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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.