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Finding the Fourth Proportional to 305,518.91, 458,219.03 and 153,675.50

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Solution

The fourth proportional to 305,518.91, 458,219.03 and 153,675.50 is: 230,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,518.91 : 458,219.03 = 153,675.50 : x
  2. Step 2: Convert to fraction form
    305,518.91/458,219.03 = 153,675.50/x
  3. Step 3: Cross multiply
    305,518.91x = 458,219.03 × 153,675.50
  4. Step 4: Simplify right side
    305,518.91x = 70,417,035,485.29
  5. Step 5: Solve for x
    x = 70,417,035,485.29/305,518.91
  6. Step 6: Final answer
    x = 230,483.40

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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.