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Finding the Fourth Proportional to 608,368.29, 912,614.40 and 208,957.29

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Solution

The fourth proportional to 608,368.29, 912,614.40 and 208,957.29 is: 313,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,368.29 : 912,614.40 = 208,957.29 : x
  2. Step 2: Convert to fraction form
    608,368.29/912,614.40 = 208,957.29/x
  3. Step 3: Cross multiply
    608,368.29x = 912,614.40 × 208,957.29
  4. Step 4: Simplify right side
    608,368.29x = 190,697,431,838.98
  5. Step 5: Solve for x
    x = 190,697,431,838.98/608,368.29
  6. Step 6: Final answer
    x = 313,457.22

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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.