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Finding the Fourth Proportional to 258,915.85, 357,303.92 and 151,506.50

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Solution

The fourth proportional to 258,915.85, 357,303.92 and 151,506.50 is: 209,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,915.85 : 357,303.92 = 151,506.50 : x
  2. Step 2: Convert to fraction form
    258,915.85/357,303.92 = 151,506.50/x
  3. Step 3: Cross multiply
    258,915.85x = 357,303.92 × 151,506.50
  4. Step 4: Simplify right side
    258,915.85x = 54,133,866,491.21
  5. Step 5: Solve for x
    x = 54,133,866,491.21/258,915.85
  6. Step 6: Final answer
    x = 209,079.00

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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.