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Finding the Fourth Proportional to 445,671.56, 615,018.34 and 252,075.89

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Solution

The fourth proportional to 445,671.56, 615,018.34 and 252,075.89 is: 347,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,671.56 : 615,018.34 = 252,075.89 : x
  2. Step 2: Convert to fraction form
    445,671.56/615,018.34 = 252,075.89/x
  3. Step 3: Cross multiply
    445,671.56x = 615,018.34 × 252,075.89
  4. Step 4: Simplify right side
    445,671.56x = 155,031,295,421.82
  5. Step 5: Solve for x
    x = 155,031,295,421.82/445,671.56
  6. Step 6: Final answer
    x = 347,859.97

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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.