Home / 255,345.79-382,298.60-135,130.45

Finding the Fourth Proportional to 255,345.79, 382,298.60 and 135,130.45

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Solution

The fourth proportional to 255,345.79, 382,298.60 and 135,130.45 is: 202,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,345.79 : 382,298.60 = 135,130.45 : x
  2. Step 2: Convert to fraction form
    255,345.79/382,298.60 = 135,130.45/x
  3. Step 3: Cross multiply
    255,345.79x = 382,298.60 × 135,130.45
  4. Step 4: Simplify right side
    255,345.79x = 51,660,181,852.37
  5. Step 5: Solve for x
    x = 51,660,181,852.37/255,345.79
  6. Step 6: Final answer
    x = 202,314.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.