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Finding the Fourth Proportional to 358,692.79, 495,018.42 and 197,547.80

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Solution

The fourth proportional to 358,692.79, 495,018.42 and 197,547.80 is: 272,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,692.79 : 495,018.42 = 197,547.80 : x
  2. Step 2: Convert to fraction form
    358,692.79/495,018.42 = 197,547.80/x
  3. Step 3: Cross multiply
    358,692.79x = 495,018.42 × 197,547.80
  4. Step 4: Simplify right side
    358,692.79x = 97,789,798,096.19
  5. Step 5: Solve for x
    x = 97,789,798,096.19/358,692.79
  6. Step 6: Final answer
    x = 272,628.28

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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.