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Finding the Fourth Proportional to 305,334.40, 458,001.60 and 147,870.40

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Solution

The fourth proportional to 305,334.40, 458,001.60 and 147,870.40 is: 221,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,334.40 : 458,001.60 = 147,870.40 : x
  2. Step 2: Convert to fraction form
    305,334.40/458,001.60 = 147,870.40/x
  3. Step 3: Cross multiply
    305,334.40x = 458,001.60 × 147,870.40
  4. Step 4: Simplify right side
    305,334.40x = 67,724,879,792.64
  5. Step 5: Solve for x
    x = 67,724,879,792.64/305,334.40
  6. Step 6: Final answer
    x = 221,805.60

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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.