Home / 258,880.05-357,253.74-145,702.80

Finding the Fourth Proportional to 258,880.05, 357,253.74 and 145,702.80

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Solution

The fourth proportional to 258,880.05, 357,253.74 and 145,702.80 is: 201,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,880.05 : 357,253.74 = 145,702.80 : x
  2. Step 2: Convert to fraction form
    258,880.05/357,253.74 = 145,702.80/x
  3. Step 3: Cross multiply
    258,880.05x = 357,253.74 × 145,702.80
  4. Step 4: Simplify right side
    258,880.05x = 52,052,870,228.47
  5. Step 5: Solve for x
    x = 52,052,870,228.47/258,880.05
  6. Step 6: Final answer
    x = 201,069.45

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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.