Home / 258,887.06-357,263.40-145,709.80

Finding the Fourth Proportional to 258,887.06, 357,263.40 and 145,709.80

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Solution

The fourth proportional to 258,887.06, 357,263.40 and 145,709.80 is: 201,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,887.06 : 357,263.40 = 145,709.80 : x
  2. Step 2: Convert to fraction form
    258,887.06/357,263.40 = 145,709.80/x
  3. Step 3: Cross multiply
    258,887.06x = 357,263.40 × 145,709.80
  4. Step 4: Simplify right side
    258,887.06x = 52,056,778,561.32
  5. Step 5: Solve for x
    x = 52,056,778,561.32/258,887.06
  6. Step 6: Final answer
    x = 201,079.11

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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.