Home / 258,853.07-357,216.99-145,678.25

Finding the Fourth Proportional to 258,853.07, 357,216.99 and 145,678.25

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Solution

The fourth proportional to 258,853.07, 357,216.99 and 145,678.25 is: 201,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,853.07 : 357,216.99 = 145,678.25 : x
  2. Step 2: Convert to fraction form
    258,853.07/357,216.99 = 145,678.25/x
  3. Step 3: Cross multiply
    258,853.07x = 357,216.99 × 145,678.25
  4. Step 4: Simplify right side
    258,853.07x = 52,038,746,320.22
  5. Step 5: Solve for x
    x = 52,038,746,320.22/258,853.07
  6. Step 6: Final answer
    x = 201,035.85

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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.