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Finding the Fourth Proportional to 258,870.93, 357,291.80 and 156,952.21

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Solution

The fourth proportional to 258,870.93, 357,291.80 and 156,952.21 is: 216,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,870.93 : 357,291.80 = 156,952.21 : x
  2. Step 2: Convert to fraction form
    258,870.93/357,291.80 = 156,952.21/x
  3. Step 3: Cross multiply
    258,870.93x = 357,291.80 × 156,952.21
  4. Step 4: Simplify right side
    258,870.93x = 56,077,736,840.12
  5. Step 5: Solve for x
    x = 56,077,736,840.12/258,870.93
  6. Step 6: Final answer
    x = 216,624.31

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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.