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Finding the Fourth Proportional to 340,303.32, 510,528.87 and 103,639.77

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Solution

The fourth proportional to 340,303.32, 510,528.87 and 103,639.77 is: 155,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,303.32 : 510,528.87 = 103,639.77 : x
  2. Step 2: Convert to fraction form
    340,303.32/510,528.87 = 103,639.77/x
  3. Step 3: Cross multiply
    340,303.32x = 510,528.87 × 103,639.77
  4. Step 4: Simplify right side
    340,303.32x = 52,911,094,665.16
  5. Step 5: Solve for x
    x = 52,911,094,665.16/340,303.32
  6. Step 6: Final answer
    x = 155,482.16

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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.