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Finding the Fourth Proportional to 255,595.79, 382,969.80 and 155,453.06

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Solution

The fourth proportional to 255,595.79, 382,969.80 and 155,453.06 is: 232,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,595.79 : 382,969.80 = 155,453.06 : x
  2. Step 2: Convert to fraction form
    255,595.79/382,969.80 = 155,453.06/x
  3. Step 3: Cross multiply
    255,595.79x = 382,969.80 × 155,453.06
  4. Step 4: Simplify right side
    255,595.79x = 59,533,827,297.59
  5. Step 5: Solve for x
    x = 59,533,827,297.59/255,595.79
  6. Step 6: Final answer
    x = 232,921.78

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1.5x scale

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.