Home / 495,267.40-742,901.10-121,290.40

Finding the Fourth Proportional to 495,267.40, 742,901.10 and 121,290.40

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Solution

The fourth proportional to 495,267.40, 742,901.10 and 121,290.40 is: 181,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,267.40 : 742,901.10 = 121,290.40 : x
  2. Step 2: Convert to fraction form
    495,267.40/742,901.10 = 121,290.40/x
  3. Step 3: Cross multiply
    495,267.40x = 742,901.10 × 121,290.40
  4. Step 4: Simplify right side
    495,267.40x = 90,106,771,579.44
  5. Step 5: Solve for x
    x = 90,106,771,579.44/495,267.40
  6. Step 6: Final answer
    x = 181,935.60

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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.