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Finding the Fourth Proportional to 292,477.30, 438,424.35 and 134,430.10

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Solution

The fourth proportional to 292,477.30, 438,424.35 and 134,430.10 is: 201,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,477.30 : 438,424.35 = 134,430.10 : x
  2. Step 2: Convert to fraction form
    292,477.30/438,424.35 = 134,430.10/x
  3. Step 3: Cross multiply
    292,477.30x = 438,424.35 × 134,430.10
  4. Step 4: Simplify right side
    292,477.30x = 58,937,429,212.94
  5. Step 5: Solve for x
    x = 58,937,429,212.94/292,477.30
  6. Step 6: Final answer
    x = 201,511.12

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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.