Home / 258,899.85-357,248.75-145,700.73

Finding the Fourth Proportional to 258,899.85, 357,248.75 and 145,700.73

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Solution

The fourth proportional to 258,899.85, 357,248.75 and 145,700.73 is: 201,048.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,899.85 : 357,248.75 = 145,700.73 : x
  2. Step 2: Convert to fraction form
    258,899.85/357,248.75 = 145,700.73/x
  3. Step 3: Cross multiply
    258,899.85x = 357,248.75 × 145,700.73
  4. Step 4: Simplify right side
    258,899.85x = 52,051,402,938.08
  5. Step 5: Solve for x
    x = 52,051,402,938.08/258,899.85
  6. Step 6: Final answer
    x = 201,048.41

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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.