Home / 303,465.10-455,197.65-145,612.30

Finding the Fourth Proportional to 303,465.10, 455,197.65 and 145,612.30

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Solution

The fourth proportional to 303,465.10, 455,197.65 and 145,612.30 is: 218,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,465.10 : 455,197.65 = 145,612.30 : x
  2. Step 2: Convert to fraction form
    303,465.10/455,197.65 = 145,612.30/x
  3. Step 3: Cross multiply
    303,465.10x = 455,197.65 × 145,612.30
  4. Step 4: Simplify right side
    303,465.10x = 66,282,376,771.10
  5. Step 5: Solve for x
    x = 66,282,376,771.10/303,465.10
  6. Step 6: Final answer
    x = 218,418.45

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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.