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Finding the Fourth Proportional to 317,664, 438,376.32 and 183,528

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Solution

The fourth proportional to 317,664, 438,376.32 and 183,528 is: 253,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,664 : 438,376.32 = 183,528 : x
  2. Step 2: Convert to fraction form
    317,664/438,376.32 = 183,528/x
  3. Step 3: Cross multiply
    317,664x = 438,376.32 × 183,528
  4. Step 4: Simplify right side
    317,664x = 80,454,329,256.96
  5. Step 5: Solve for x
    x = 80,454,329,256.96/317,664
  6. Step 6: Final answer
    x = 253,268.64

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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.