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Finding the Fourth Proportional to 315,088.53, 434,744.39 and 186,030.02

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Solution

The fourth proportional to 315,088.53, 434,744.39 and 186,030.02 is: 256,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,088.53 : 434,744.39 = 186,030.02 : x
  2. Step 2: Convert to fraction form
    315,088.53/434,744.39 = 186,030.02/x
  3. Step 3: Cross multiply
    315,088.53x = 434,744.39 × 186,030.02
  4. Step 4: Simplify right side
    315,088.53x = 80,875,506,149.88
  5. Step 5: Solve for x
    x = 80,875,506,149.88/315,088.53
  6. Step 6: Final answer
    x = 256,675.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.