Home / 287,297.02-430,880.73-109,740.70

Finding the Fourth Proportional to 287,297.02, 430,880.73 and 109,740.70

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Solution

The fourth proportional to 287,297.02, 430,880.73 and 109,740.70 is: 164,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,297.02 : 430,880.73 = 109,740.70 : x
  2. Step 2: Convert to fraction form
    287,297.02/430,880.73 = 109,740.70/x
  3. Step 3: Cross multiply
    287,297.02x = 430,880.73 × 109,740.70
  4. Step 4: Simplify right side
    287,297.02x = 47,285,152,926.71
  5. Step 5: Solve for x
    x = 47,285,152,926.71/287,297.02
  6. Step 6: Final answer
    x = 164,586.30

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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.