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Finding the Fourth Proportional to 152,386.70, 212,816.50 and 152,386.70

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Solution

The fourth proportional to 152,386.70, 212,816.50 and 152,386.70 is: 212,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,386.70 : 212,816.50 = 152,386.70 : x
  2. Step 2: Convert to fraction form
    152,386.70/212,816.50 = 152,386.70/x
  3. Step 3: Cross multiply
    152,386.70x = 212,816.50 × 152,386.70
  4. Step 4: Simplify right side
    152,386.70x = 32,430,404,140.55
  5. Step 5: Solve for x
    x = 32,430,404,140.55/152,386.70
  6. Step 6: Final answer
    x = 212,816.50

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.