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Finding the Fourth Proportional to 370,256.40, 553,980.60 and 245,840.40

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Solution

The fourth proportional to 370,256.40, 553,980.60 and 245,840.40 is: 367,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,256.40 : 553,980.60 = 245,840.40 : x
  2. Step 2: Convert to fraction form
    370,256.40/553,980.60 = 245,840.40/x
  3. Step 3: Cross multiply
    370,256.40x = 553,980.60 × 245,840.40
  4. Step 4: Simplify right side
    370,256.40x = 136,190,812,296.24
  5. Step 5: Solve for x
    x = 136,190,812,296.24/370,256.40
  6. Step 6: Final answer
    x = 367,828.38

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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.