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Finding the Fourth Proportional to 563,150.70, 777,156.76 and 308,485.08

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Solution

The fourth proportional to 563,150.70, 777,156.76 and 308,485.08 is: 425,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,150.70 : 777,156.76 = 308,485.08 : x
  2. Step 2: Convert to fraction form
    563,150.70/777,156.76 = 308,485.08/x
  3. Step 3: Cross multiply
    563,150.70x = 777,156.76 × 308,485.08
  4. Step 4: Simplify right side
    563,150.70x = 239,741,265,281.14
  5. Step 5: Solve for x
    x = 239,741,265,281.14/563,150.70
  6. Step 6: Final answer
    x = 425,714.23

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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.