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Finding the Fourth Proportional to 292,030.60, 438,045.90 and 262,539.40

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Solution

The fourth proportional to 292,030.60, 438,045.90 and 262,539.40 is: 393,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,030.60 : 438,045.90 = 262,539.40 : x
  2. Step 2: Convert to fraction form
    292,030.60/438,045.90 = 262,539.40/x
  3. Step 3: Cross multiply
    292,030.60x = 438,045.90 × 262,539.40
  4. Step 4: Simplify right side
    292,030.60x = 115,004,307,758.46
  5. Step 5: Solve for x
    x = 115,004,307,758.46/292,030.60
  6. Step 6: Final answer
    x = 393,809.10

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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.