Home / 305,528.04-458,342.82-128,048.40

Finding the Fourth Proportional to 305,528.04, 458,342.82 and 128,048.40

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Solution

The fourth proportional to 305,528.04, 458,342.82 and 128,048.40 is: 192,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,528.04 : 458,342.82 = 128,048.40 : x
  2. Step 2: Convert to fraction form
    305,528.04/458,342.82 = 128,048.40/x
  3. Step 3: Cross multiply
    305,528.04x = 458,342.82 × 128,048.40
  4. Step 4: Simplify right side
    305,528.04x = 58,690,064,752.49
  5. Step 5: Solve for x
    x = 58,690,064,752.49/305,528.04
  6. Step 6: Final answer
    x = 192,093.87

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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.