Home / 255,639.80-383,515.05-97,868.25

Finding the Fourth Proportional to 255,639.80, 383,515.05 and 97,868.25

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Solution

The fourth proportional to 255,639.80, 383,515.05 and 97,868.25 is: 146,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,639.80 : 383,515.05 = 97,868.25 : x
  2. Step 2: Convert to fraction form
    255,639.80/383,515.05 = 97,868.25/x
  3. Step 3: Cross multiply
    255,639.80x = 383,515.05 × 97,868.25
  4. Step 4: Simplify right side
    255,639.80x = 37,533,947,159.17
  5. Step 5: Solve for x
    x = 37,533,947,159.17/255,639.80
  6. Step 6: Final answer
    x = 146,823.57

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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.