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Finding the Fourth Proportional to 303,435.55, 455,280.90 and 163,030.15

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Solution

The fourth proportional to 303,435.55, 455,280.90 and 163,030.15 is: 244,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,435.55 : 455,280.90 = 163,030.15 : x
  2. Step 2: Convert to fraction form
    303,435.55/455,280.90 = 163,030.15/x
  3. Step 3: Cross multiply
    303,435.55x = 455,280.90 × 163,030.15
  4. Step 4: Simplify right side
    303,435.55x = 74,224,513,419.14
  5. Step 5: Solve for x
    x = 74,224,513,419.14/303,435.55
  6. Step 6: Final answer
    x = 244,613.77

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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.