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Finding the Fourth Proportional to 369,907.79, 554,893.68 and 130,001.18

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Solution

The fourth proportional to 369,907.79, 554,893.68 and 130,001.18 is: 195,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,907.79 : 554,893.68 = 130,001.18 : x
  2. Step 2: Convert to fraction form
    369,907.79/554,893.68 = 130,001.18/x
  3. Step 3: Cross multiply
    369,907.79x = 554,893.68 × 130,001.18
  4. Step 4: Simplify right side
    369,907.79x = 72,136,833,174.54
  5. Step 5: Solve for x
    x = 72,136,833,174.54/369,907.79
  6. Step 6: Final answer
    x = 195,013.01

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1.5x scale

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.